| Name | Nicotinamide |
| Description | Niacinamide is an important compound functioning as a component of the coenzyme NAD. Its primary significance is in the prevention and/or cure of blacktongue and PELLAGRA. Most animals cannot manufacture this compound in amounts sufficient to prevent nutritional deficiency and it therefore must be supplemented through dietary intake. |
| In vitro | Nicotinamide strongly inhibits yeast silencing, increases rDNA recombination, and shortens replicative life span to that of a sir2 mutant. Nicotinamide abolishes silencing and leads to an eventual delocalization of Sir2 even in G(1)-arrested cells, demonstrating that silent heterochromatin requires continual Sir2 activity. [1] Nicotinamide results in a twofold increase in DNA content and a threefold increase in insulin content in the fetal cells. Nicotinamide induces differentiation and maturation of human fetal pancreatic islet cells. [2] Nicotinamide regulates sirtuins by switching between deacetylation and base exchange. Nicotinamide switching is quantitated for the Sir2s from Archeaglobus fulgidus (Sir2Af2), Saccharomyces cerevisiae (Sir2p), and mouse (Sir2alpha). [3] Nicotinamide selectively reduces a specific phospho-species of tau (Thr231) that is associated with microtubule depolymerization in Alzheimer's disease transgenic mice, in a manner similar to inhibition of SirT1. Nicotinamide also dramatically increases acetylated alpha-tubulin, a primary substrate of SirT2, and MAP2c in Alzheimer's disease transgenic mice, both of which are linked to increased microtubule stability. [4] Nicotinamide fosters DNA integrity and maintains phosphatidylserine membrane asymmetry to prevent cellular inflammation, cellular phagocytosis and vascular thrombosis. Nicotinamide both prevents and reverses neuronal and vascular cell injury. [5] |
| In vivo | Normal and streptozotocin-nicotinamide induced adult male diabetic rats receive quercetin (10, 25 and 50 mg/kg/bw) orally, which results in a significant decrease in FBG and cardiac injury marker levels with increased insulin levels[6]. Nicotinamide improves maternal hypertension, proteinuria, and glomerular endotheliosis in RUPP mice. Moreover, nicotinamide prolongs pregnancies, and improves survival and growth of the embryos in RUPP PE mice[7]. |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice. |
| Solubility Information | DMSO : 50 mg/mL (409.43 mM), Sonication is recommended
Ethanol : 23 mg/mL (188.34 mM), Sonication is recommended.
H2O : 50 mg/mL (409.43 mM), Sonication is recommended.
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| Keywords | skin cancer | Sirtuin | SIRT | Nicotinamide | Murine metastatic melanoma model | Melanoma | Inhibitor | inhibit | EndogenousMetabolite | Endogenous Metabolite | A375 cell |
| Inhibitors Related | Sucrose | Acetaminophen | Daidzein | Guanidine hydrochloride | Fumaric acid | Ferulic Acid | L-Methionine | Formamide | Glycerol | Thymidine | Naringin | 3-Indoleacetic acid |
| Related Compound Libraries | Cosmetic Ingredient Compound Library | Human Endogenous Metabolite Compound Library Plus | Gut Microbial Metabolite Library |
United States
